Hollywood's Jackie Chan is China's go-to pitchman. But his apparent indiscriminate hawking of just about anything has led to endorsements of what some say are faulty products. TIME takes a look at other embarrassing celeb product pitchers

Luke Wilson, AT&T

By Frances RomeroTuesday, Aug. 24, 2010

Although AT&T fought a valiant battle in its series of commercials downplaying Verizon's network and phone capabilities, it probably missed the mark with its pitchman. Luke Wilson, an actor known for his dry wit and monotone voice, wasn't nearly as ruthless as one would have liked to see in this televised wireless war between the nation's two biggest providers. He just doesn't seem quite invested in what he's saying.